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(No Model.) 3 Sheets-S heet 1. W. M. FERRY.

FEED WATER HEATER FOR STEAM BOILERS.

Patented Oct. 12, 1886.

(No Model.) 3 Sheets-Sheet 2. W. M. PERRY. FEED WATER HEATER FOR STEAMBOILERS.

Patented Oct. 12, 1886.

java/i27- WJZZM 2 N PETERSv Pham-Liehu n hnr. Washington. 11C.

3 Sheets-Sheet 3.

(No Model.)

Pdtented Oct. 12, 1886.

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NITED rarns XVILLIAM MONTAGUE FERRY, OF PARK CITY, UTAH TERRITORY.

FEED-WATER HEATER FOR STEAM-BOiLERS.

SPECIFICATION forming part of Letters Patent No. 350,820, dated October12, 1886.

Application filed June 2, 1886. Serial No. 203,961. (No model.)-

To aZZ whom it may concern..-

Be it known that I, WILLIAM MONTAGUE FERRY, a citizen of the UnitedStates, residing at Park City, in the county of Summit and Territory ofUtah, have invented certain new and useful Improvements in FeedaterHeaters for Steam-Boilers; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

The object of my invention is to provide a steam-boiler and feed-waterheater of such construction and arrangement that economy in fuel willresult, that the settlement of lime and other impurities will beeffected to a great extent before the feed-water enters the boiler, andthat the circulating and heating device may be easily cleaned outwithout interfering with the operation of the boiler. The constructionby which I attain the above advantages is, moreover, simple andinexpensive.

My invention can best be understood by reference to the accompanyingdrawings, in

' which I have shown a means for carrying it into effect.

In said drawings, Figure 1 is a side elevation, partly broken away, of asteam-boiler embodying my invention. Fig. 2 is a rear elevation of thesame. Fig. 3 is a front elevation. Fig. 4 is a sectional view on alarger scale of one of the check-valves, hereinafter described. Fig. 5is a transverse sectional view of the boiler.

Referring to the drawings, A represents a steam-boiler of any suitableconstruction; B, the furnace; O, the ash-pit; 0, the duct fordischarging the ashes, and G the walls inclosing the boiler and furnace.The products of combustion pass back under the boiler, impinge againstthe water-back F, and enter the firefiues, whence they escape through aflue (not shown) at any convenient point. i

D D represent the feed-water heating and circulating device. In theconstruction shown the device consists of pipes arranged within thewalls 0 beside the boiler on each side thereof, and one above theother.. The number of these pipes may be varied and their arrangement bedifferent in some respect from that shown without departing from myinvention. At one end of the lower pipe. D, the water is receivedthrough the medium of supply pipe g, mud-drum G, pipe 9', and thechamber of check-valve e. the water, now partially heated, passes topipe D through ducts (1, preferably at various points, as shown, and,finally, from the upper of the series of heating-pipes to the boilerthrough pipes ff, either directly or by way of the water-back F. At theother end of the boiler a communication is maintained with the heater bya pipe, to, which leads to the low-' er, D, of the heater-pipes. It willthus beseen that a slow but constant circulation takes place while theboiler is in operation by way of the parts F, f, A, a, D, d, D, and f,consecutively. In the first passage of the water through the pipes D Dmost of the lime and other impurities will be deposited. Provision ismade for cleaning these parts by removing the plates d, which close theends of said pipes and scraping the interior of the latter. The interiorof ducts (1 may also be reached by way of holes in the upper or lowerpipe, closed by plugs d To cut off the boiler from these parts duringthe operation of cleaning, and thus enable steam to be kept up, I placecheck-valves in the pipe a andf, as shown, respectively, at a andf Theformer, however, is arranged to normally permit egress from the boilerfor purposes of circulation and for blowing off the heater-pipes, and toprevent ingress in order that fresh feed-water may not enter the boilerdirect. WVhen, therefore, it is desired to blow off the heater, thevalves j will be opened, the valve will automatically close, and throughthe valve a willoccur the forcible flow of wa ter necessary for clearingthe heater-pipes. The valve f is arranged to automaticallyprevent egressfrom the boiler. If it should be desired, this valve may be providedwith means for positively holding it open, in which case, the valve ahaving been positively closed, the heater-pipes could be blown off intothe mud-drum G.

H is a mud-drum situated beneath and communicating with the boiler andthe waterback.

L indicates a transverse pipe supported in the wall of the furnace, andpreferably con- From the pipe D tained within and covered by thebridge-wall. Near each endthe pipeL is connected with the lower of theheater-pipes by vertical pipes Z. This communication between theheaterpipes on eacli side of the boiler equalizes the circulation, thepipes Z being large enough to permit a free movement of water throughthem.

The arrangement furnishes an additional heater at a point when much heatmay be thus economized, and also affords a settling-chamber which willrelieve the pipes D D of much solid matter. By clearing the pipes Lthrough the blow-off 11, the direct clearing of pipes D D will berendered less frequently necessary. The pipe L also gives a firm supportto the heaters at each side of the boiler at a point intermediatebetween their ends and prevents their sagging or losing their propershape.

Having thus described my invention, what I claim, and desire tosecure byLetters Patent of the United States, is-

1. The combination, with a steam-boiler, of a feed water heater,circulating-pipes between the heater and boiler, and a check valve orvalves in said pipes, the heater eX- tending through both end walls ofthe furnace, and being provided with openings for cleaning thesame,andsaid parts being constructed and arranged substantially asdescribed.

2. The combination, with a SCBHIIl'bOllGI, of a feed-water heatercommunicating at one end with the upper part of the boiler, and at theother end with the lower part, and valves in said communications, theheater extending through both end walls of the furnace, and beingprovided with openings for cleaning, substantially as set forth.

3. The combination, with a steam-boiler, of a feed-water heatercommunicating at one end with the upper part of the boiler, and at theother end with the lower part. a check-valve to prevent egress from theboiler in the first communication, a check-valve to prevent ingress tothe boiler in the second communication, and means for positively closingthe second valve, substantially as set forth.

4. The combination,with a steam-boiler and the furnace-walls, of afeed-water heater consisting of a vertical series of pipes arrangedbeside the boiler and within s .id walls,waterducts d from the lowerpipe to the one above it, and situated intermediately between the endsof said pipes, a waterconnection between the upper pipe and the upperpart of lower pipe and the lower part of the boiler,

the said pipes being provided attheir ends with the removable plates 01,substantially as set forth. t

6. The combination, with the steam-boiler and the heating andcirculating pipes, of the water back F, in line'with the upper part ofthe boiler, having a steam-space in its upper part above the waterline,and on a level with the steam-space of the boiler, and connectionsbetween the waterback, pipes, and boiler, substantially as set forth.

7. The combination, with a steam-boiler, of a feed-water heater in twoparts, one on each side of the boiler, and a transverse heating andcirculating chamber or pipe, situated immediately back of the furnaceand in the path of the products of combustion, communicating with bothof said parts, substantially as set forth.

8. The combination, with a steam-boiler, of a feed-water heater in twoparts, one on each side of the boiler, a transverse heating andcirculating pipe,situated immediately back of the furnace and in thepath of the products of combustion, communicating with and below saidparts, and a blow-ofi' pipe leading from said transversepipe,substantially as set forth.

.9. The combination,with a steam-boiler, of a feed-water heater,consisting of two parts, one on each side of the boiler, supported attheir ends, and a transverse heating and circulating pipe communicatingwith and supporting said parts between their ends,substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM MONTAGUE FERRY.

Witnesses: V

SAMUEL J. AROHHELM, E. KOYLE.

